How could Bernie, The Chairman of the Budget Committee not know?

[Hortensis]

17. Bernie Sanders is not mentioned in articles about the bill itself, but leads

mention along with the Republicans in articles criticizing and opposing.

Don't know what the OP refers to, but just grab a statement and find something. This is Bernie Sanders' (Budget Committee Chair!) own statement prepared for the press to copy. He distances himself from what "may be" accomplished with passage of this bill, but "understands" it may be coming to the floor. (Not his fault if it does?) That's from the first sentence. The lead's the theme, but I'd check out more recent statements for more up-to-date dissociations.

PREPARED REMARKS: Sanders Says Inflation Reduction Act Doesn’t Meet Needs of the American People
August 3, 2022
WASHINGTON, Aug. 3 – Sen. Bernie Sanders (I-Vt.) Wednesday on the floor of the U.S. Senate gave remarks on the Inflation Reduction Act, calling on his colleagues to study the bill thoroughly and to come up with amendments and suggestions as to how to improve it in order to meet the needs of the American people.

Sanders’ remarks, as prepared for delivery, are below and can be watched here.

M. President: My understanding is that the so-called “Inflation Reduction Act” may be coming to the floor in the coming days. ...

https://www.sanders.senate.gov/press-releases/prepared-remarks-sanders-says-inflation-reduction-act-doesnt-meet-needs-of-the-american-people/